\documentclass{ppex}
\nonstopmode
\AtBeginDocument {\setlength \unitlength {0.09pt}}
\usepackage {eepic,hetarom}
\pagestyle{empty}
\setlength\textwidth{231.0pt}
\begin{document}
\ResetPreambleCommands
\ReadyForTheFray
\usepackage {eepic,hetarom}
\decaheterov[af]{4==O}
  {1==CH$_3$;6==H$_3$C;9A==H;%
   {{10}A}==\lmoiety{HOCH$_2$}}
\nonaheterov[bjge]{1==S;2==N}{3==Cl}
\end{document}